IMC Chicago Portfolio holdings
IMC-Chicago, a key arm of IMC Trading founded in 1989 by Rob Defares and René Schelvis in Amsterdam, is a proprietary trading firm and market maker headquartered in Chicago since opening its first overseas office there in 2000. Employing over 650 of IMC’s 1,600+ global workforce, it operates at the heart of North America’s financial hub, trading equities, options, futures, and other derivatives on major exchanges like the Chicago Mercantile Exchange (CME) and Chicago Board Options Exchange (CBOE). Known for its technology-driven approach, IMC-Chicago leverages advanced algorithms and low-latency systems to provide liquidity across more than 100 global venues, evolving from a trading outfit with strong tech to a tech company that trades. Under CEO Rob Defares, the firm emphasizes innovation, quantitative strategies, and a collaborative culture, making it a powerhouse in the U.S. derivatives market.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$568M |
| 2 |
Amazon
AMZN
|
+$341M |
| 3 |
iShares MSCI South Korea ETF
EWY
|
+$278M |
| 4 |
Apple
AAPL
|
+$239M |
| 5 |
TSMC
TSM
|
+$215M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$316M |
| 2 |
Tesla
TSLA
|
+$253M |
| 3 |
Micron Technology
MU
|
+$178M |
| 4 |
iShares Bitcoin Trust
IBIT
|
+$176M |
| 5 |
Sandisk
SNDK
|
+$159M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Miscellaneous | 97.94% |
| 2 | Technology | 0.92% |
| 3 | Consumer Discretionary | 0.31% |
| 4 | Financials | 0.17% |
| 5 | Communication Services | 0.16% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
4351
2x Solana ETF
SOLT
$177M
| $648K | ﹤0.01% |
+20,083
| New | +$846K |
2026 Q2
0 quarters
|
|
4352
Spectrum Brands
SPB
$1.84B
| $648K | ﹤0.01% |
+7,557
| New | +$611K |
2026 Q2
0 quarters
|
|
4353
CALL
Global Partners
GLP
$1.64B
| $648K | ﹤0.01% |
+13,900
| New | +$656K |
2026 Q2
0 quarters
|
|
4354
CALL
Maravai LifeSciences
MRVI
$1.09B
| $646K | ﹤0.01% |
103,600
+90,900
| +716% | +$392K |
2026 Q1
1 quarter
|
|
4355
CALL
iShares Convertible Bond ETF
ICVT
$7.6B
| $646K | ﹤0.01% |
20,900
+8,500
| +69% | +$985K |
2026 Q1
1 quarter
|
|
4356
CALL
Insight Enterprises
NSIT
$5.19B
| $646K | ﹤0.01% |
5,300
+800
| +18% | +$73K |
2026 Q1
1 quarter
|
|
4357
PUT
Ameren
AEE
$29.9B
| $644K | ﹤0.01% |
5,700
+800
| +16% | +$88.4K |
2026 Q1
1 quarter
|
|
4358
PUT
Volatility Shares Trust XRP 2X ETF
XRPT
$71.8M
| $644K | ﹤0.01% |
29,600
-18,600
| -39% | -$688K |
2026 Q1
1 quarter
|
|
4359
Eaton Vance Limited Duration Income Fund
EVV
$975M
| $643K | ﹤0.01% |
+68,616
| New | +$642K |
2026 Q2
0 quarters
|
|
4360
PUT
Artisan Partners
APAM
$2.38B
| $642K | ﹤0.01% |
+18,600
| New | +$684K |
2026 Q2
0 quarters
|
|
4361
Direxion Daily Technology Bear 3x ETF
TECS
$82.5M
| $642K | ﹤0.01% |
10,417
+6,377
| +158% | +$643K |
2026 Q1
1 quarter
|
|
4362
Direxion Daily NFLX Bear 1X ETF
NFXS
$3.99M
| $641K | ﹤0.01% |
29,677
-31,965
| -52% | -$572K |
2025 Q4
2 quarters
|
|
4363
PUT
Green Brick Partners
GRBK
$2.77B
| $640K | ﹤0.01% |
8,000
+1,100
| +16% | +$76K |
2025 Q4
2 quarters
|
|
4364
CALL
OneSpan
OSPN
$744M
| $639K | ﹤0.01% |
+44,500
| New | +$562K |
2026 Q2
0 quarters
|
|
4365
PUT
Avantor
AVTR
$11.7B
| $639K | ﹤0.01% |
64,500
+12,100
| +23% | +$104K |
2024 Q1
9 quarters
|
|
4366
PUT
Compañía de Minas Buenaventura
BVN
$7.09B
| $639K | ﹤0.01% |
21,800
-11,400
| -34% | -$387K |
2026 Q1
1 quarter
|
|
4367
abrdn Global Infrastructure Income Fund
ASGI
$799M
| $638K | ﹤0.01% |
+27,442
| New | +$643K |
2026 Q2
0 quarters
|
|
4368
CALL
Centerra Gold
CGAU
$3.96B
| $638K | ﹤0.01% |
40,200
-18,000
| -31% | -$315K |
2025 Q3
3 quarters
|
|
4369
PUT
Virtu Financial
VIRT
$4.94B
| $637K | ﹤0.01% |
10,700
-900
| -8% | -$47.3K |
2025 Q3
3 quarters
|
|
4370
Samsara
IOT
$26.3B
| $637K | ﹤0.01% |
+19,638
| New | +$608K |
2026 Q2
0 quarters
|
|
4371
PUT
Credit Acceptance
CACC
$5.66B
| $637K | ﹤0.01% |
1,000
-4,200
| -81% | -$2.25M |
2026 Q1
1 quarter
|
|
4372
PUT
Atlanta Braves Holdings Series A
BATRA
$3.51B
| $636K | ﹤0.01% |
11,300
-2,100
| -16% | -$112K |
2026 Q1
1 quarter
|
|
4373
CALL
Caris Life Sciences
CAI
$9.04B
| $636K | ﹤0.01% |
35,700
+22,900
| +179% | +$410K |
2025 Q4
2 quarters
|
|
4374
Magnite
MGNI
$3.28B
| $636K | ﹤0.01% |
33,508
+5,734
| +21% | +$82.1K |
2025 Q4
2 quarters
|
|
4375
PUT
CVR Partners
UAN
$1.33B
| $635K | ﹤0.01% |
5,700
+2,400
| +73% | +$294K |
2025 Q4
2 quarters
|
|
Similar funds
IMC Chicago's Q2 2026 Portfolio in Review
As of Q2 2026, IMC Chicago held 6,955 positions worth $419B, up 50% from $278B the previous quarter. Its ten largest holdings account for 34% of the portfolio.
IMC Chicago's Q2 2026 filing shows 1,282 new, 3,251 increased, 1,751 reduced and 653 closed positions. Its largest new stake was Microsoft: 303,034 shares worth $113M. The largest sale was State Street SPDR S&P 500 ETF Trust, an estimated $316M.
By sector, the portfolio is most concentrated in Miscellaneous at 98% of assets, down from 98% a quarter earlier, followed by Technology and Consumer Discretionary.
- IMC Chicago's largest Q2 2026 buy was Microsoft: 303,034 shares worth $113M.
- IMC Chicago added most to State Street SPDR Dow Jones Industrial Average ETF Trust in Q2 2026, an estimated $568M increase.
- IMC Chicago's biggest Q2 2026 reduction was Tesla, cutting an estimated $253M.
- IMC Chicago fully exited State Street SPDR S&P 500 ETF Trust in Q2 2026, selling an estimated $316M.
- IMC Chicago's ten largest holdings make up 34% of its $419B portfolio in Q2 2026.
- IMC Chicago opened 1,282 new positions and closed 653 in Q2 2026.
- IMC Chicago's portfolio value rose 50% quarter-over-quarter to $419B.
Based on IMC Chicago's 13F filing for Q2 2026, filed 6 Aug 2026.